function vr_handling()
{
var iMyWidth;
var iMyHeight;
iMyWidth = (window.screen.width/2) - (315 + 10)
iMyHeight = (window.screen.height/2) - (255 + 50)
var win2 = window.open("../../virtualreality/vr_handling.htm","Fenster2","status,height=510,width=630,resizable=no,left=" + iMyWidth + ",top=" + iMyHeight + ",screenX=" + iMyWidth + ",screenY=" + iMyHeight + ",scrollbars=no")
}

function vr_problems()
{
var iMyWidth;
var iMyHeight;
iMyWidth = (window.screen.width/2) - (415 + 10)
iMyHeight = (window.screen.height/2) - (345 + 50)
var win2 = window.open("../../virtualreality/vr_problems.htm","Fenster2","status,height=690,width=830,resizable=no,left=" + iMyWidth + ",top=" + iMyHeight + ",screenX=" + iMyWidth + ",screenY=" + iMyHeight + ",scrollbars=no")
}


function changecolor(obj, classe){
	obj.className = classe;
}